drivers/s390/net/qeth_core.h

   1 /*
   2  *    Copyright IBM Corp. 2007
   3  *    Author(s): Utz Bacher <utz.bacher@de.ibm.com>,
   4  *               Frank Pavlic <fpavlic@de.ibm.com>,
   5  *               Thomas Spatzier <tspat@de.ibm.com>,
   6  *               Frank Blaschka <frank.blaschka@de.ibm.com>
   7  */
   8
   9 #ifndef __QETH_CORE_H__
  10 #define __QETH_CORE_H__
  11
  12 #include <linux/if.h>
  13 #include <linux/if_arp.h>
  14 #include <linux/etherdevice.h>
  15 #include <linux/if_vlan.h>
  16 #include <linux/ctype.h>
  17 #include <linux/in6.h>
  18 #include <linux/bitops.h>
  19 #include <linux/seq_file.h>
  20 #include <linux/ethtool.h>
  21 #include <linux/hashtable.h>
  22
  23 #include <net/ipv6.h>
  24 #include <net/if_inet6.h>
  25 #include <net/addrconf.h>
  26
  27 #include <asm/debug.h>
  28 #include <asm/qdio.h>
  29 #include <asm/ccwdev.h>
  30 #include <asm/ccwgroup.h>
  31 #include <asm/sysinfo.h>
  32
  33 #include "qeth_core_mpc.h"
  34
  35 /**
  36  * Debug Facility stuff
  37  */
  38 enum qeth_dbf_names {
  39         QETH_DBF_SETUP,
  40         QETH_DBF_MSG,
  41         QETH_DBF_CTRL,
  42         QETH_DBF_INFOS  /* must be last element */
  43 };
  44
  45 struct qeth_dbf_info {
  46         char name[DEBUG_MAX_NAME_LEN];
  47         int pages;
  48         int areas;
  49         int len;
  50         int level;
  51         struct debug_view *view;
  52         debug_info_t *id;
  53 };
  54
  55 #define QETH_DBF_CTRL_LEN 256
  56
  57 #define QETH_DBF_TEXT(name, level, text) \
  58         debug_text_event(qeth_dbf[QETH_DBF_##name].id, level, text)
  59
  60 #define QETH_DBF_HEX(name, level, addr, len) \
  61         debug_event(qeth_dbf[QETH_DBF_##name].id, level, (void *)(addr), len)
  62
  63 #define QETH_DBF_MESSAGE(level, text...) \
  64         debug_sprintf_event(qeth_dbf[QETH_DBF_MSG].id, level, text)
  65
  66 #define QETH_DBF_TEXT_(name, level, text...) \
  67         qeth_dbf_longtext(qeth_dbf[QETH_DBF_##name].id, level, text)
  68
  69 #define QETH_CARD_TEXT(card, level, text) \
  70         debug_text_event(card->debug, level, text)
  71
  72 #define QETH_CARD_HEX(card, level, addr, len) \
  73         debug_event(card->debug, level, (void *)(addr), len)
  74
  75 #define QETH_CARD_MESSAGE(card, text...) \
  76         debug_sprintf_event(card->debug, level, text)
  77
  78 #define QETH_CARD_TEXT_(card, level, text...) \
  79         qeth_dbf_longtext(card->debug, level, text)
  80
  81 #define SENSE_COMMAND_REJECT_BYTE 0
  82 #define SENSE_COMMAND_REJECT_FLAG 0x80
  83 #define SENSE_RESETTING_EVENT_BYTE 1
  84 #define SENSE_RESETTING_EVENT_FLAG 0x80
  85
  86 /*
  87  * Common IO related definitions
  88  */
  89 #define CARD_RDEV(card) card->read.ccwdev
  90 #define CARD_WDEV(card) card->write.ccwdev
  91 #define CARD_DDEV(card) card->data.ccwdev
  92 #define CARD_BUS_ID(card) dev_name(&card->gdev->dev)
  93 #define CARD_RDEV_ID(card) dev_name(&card->read.ccwdev->dev)
  94 #define CARD_WDEV_ID(card) dev_name(&card->write.ccwdev->dev)
  95 #define CARD_DDEV_ID(card) dev_name(&card->data.ccwdev->dev)
  96 #define CHANNEL_ID(channel) dev_name(&channel->ccwdev->dev)
  97
  98 /**
  99  * card stuff
 100  */
 101 struct qeth_perf_stats {
 102         unsigned int bufs_rec;
 103         unsigned int bufs_sent;
 104
 105         unsigned int skbs_sent_pack;
 106         unsigned int bufs_sent_pack;
 107
 108         unsigned int sc_dp_p;
 109         unsigned int sc_p_dp;
 110         /* qdio_cq_handler: number of times called, time spent in */
 111         __u64 cq_start_time;
 112         unsigned int cq_cnt;
 113         unsigned int cq_time;
 114         /* qdio_input_handler: number of times called, time spent in */
 115         __u64 inbound_start_time;
 116         unsigned int inbound_cnt;
 117         unsigned int inbound_time;
 118         /* qeth_send_packet: number of times called, time spent in */
 119         __u64 outbound_start_time;
 120         unsigned int outbound_cnt;
 121         unsigned int outbound_time;
 122         /* qdio_output_handler: number of times called, time spent in */
 123         __u64 outbound_handler_start_time;
 124         unsigned int outbound_handler_cnt;
 125         unsigned int outbound_handler_time;
 126         /* number of calls to and time spent in do_QDIO for inbound queue */
 127         __u64 inbound_do_qdio_start_time;
 128         unsigned int inbound_do_qdio_cnt;
 129         unsigned int inbound_do_qdio_time;
 130         /* number of calls to and time spent in do_QDIO for outbound queues */
 131         __u64 outbound_do_qdio_start_time;
 132         unsigned int outbound_do_qdio_cnt;
 133         unsigned int outbound_do_qdio_time;
 134         unsigned int large_send_bytes;
 135         unsigned int large_send_cnt;
 136         unsigned int sg_skbs_sent;
 137         unsigned int sg_frags_sent;
 138         /* initial values when measuring starts */
 139         unsigned long initial_rx_packets;
 140         unsigned long initial_tx_packets;
 141         /* inbound scatter gather data */
 142         unsigned int sg_skbs_rx;
 143         unsigned int sg_frags_rx;
 144         unsigned int sg_alloc_page_rx;
 145         unsigned int tx_csum;
 146         unsigned int tx_lin;
 147 };
 148
 149 /* Routing stuff */
 150 struct qeth_routing_info {
 151         enum qeth_routing_types type;
 152 };
 153
 154 /* IPA stuff */
 155 struct qeth_ipa_info {
 156         __u32 supported_funcs;
 157         __u32 enabled_funcs;
 158 };
 159
 160 /* SETBRIDGEPORT stuff */
 161 enum qeth_sbp_roles {
 162         QETH_SBP_ROLE_NONE      = 0,
 163         QETH_SBP_ROLE_PRIMARY   = 1,
 164         QETH_SBP_ROLE_SECONDARY = 2,
 165 };
 166
 167 enum qeth_sbp_states {
 168         QETH_SBP_STATE_INACTIVE = 0,
 169         QETH_SBP_STATE_STANDBY  = 1,
 170         QETH_SBP_STATE_ACTIVE   = 2,
 171 };
 172
 173 #define QETH_SBP_HOST_NOTIFICATION 1
 174
 175 struct qeth_sbp_info {
 176         __u32 supported_funcs;
 177         enum qeth_sbp_roles role;
 178         __u32 hostnotification:1;
 179         __u32 reflect_promisc:1;
 180         __u32 reflect_promisc_primary:1;
 181 };
 182
 183 static inline int qeth_is_ipa_supported(struct qeth_ipa_info *ipa,
 184                 enum qeth_ipa_funcs func)
 185 {
 186         return (ipa->supported_funcs & func);
 187 }
 188
 189 static inline int qeth_is_ipa_enabled(struct qeth_ipa_info *ipa,
 190                 enum qeth_ipa_funcs func)
 191 {
 192         return (ipa->supported_funcs & ipa->enabled_funcs & func);
 193 }
 194
 195 #define qeth_adp_supported(c, f) \
 196         qeth_is_ipa_supported(&c->options.adp, f)
 197 #define qeth_adp_enabled(c, f) \
 198         qeth_is_ipa_enabled(&c->options.adp, f)
 199 #define qeth_is_supported(c, f) \
 200         qeth_is_ipa_supported(&c->options.ipa4, f)
 201 #define qeth_is_enabled(c, f) \
 202         qeth_is_ipa_enabled(&c->options.ipa4, f)
 203 #define qeth_is_supported6(c, f) \
 204         qeth_is_ipa_supported(&c->options.ipa6, f)
 205 #define qeth_is_enabled6(c, f) \
 206         qeth_is_ipa_enabled(&c->options.ipa6, f)
 207 #define qeth_is_ipafunc_supported(c, prot, f) \
 208          ((prot == QETH_PROT_IPV6) ? \
 209                 qeth_is_supported6(c, f) : qeth_is_supported(c, f))
 210 #define qeth_is_ipafunc_enabled(c, prot, f) \
 211          ((prot == QETH_PROT_IPV6) ? \
 212                 qeth_is_enabled6(c, f) : qeth_is_enabled(c, f))
 213
 214 #define QETH_IDX_FUNC_LEVEL_OSD          0x0101
 215 #define QETH_IDX_FUNC_LEVEL_IQD          0x4108
 216
 217 #define QETH_MODELLIST_ARRAY \
 218         {{0x1731, 0x01, 0x1732, QETH_CARD_TYPE_OSD, QETH_MAX_QUEUES, 0}, \
 219          {0x1731, 0x05, 0x1732, QETH_CARD_TYPE_IQD, QETH_MAX_QUEUES, 0x103}, \
 220          {0x1731, 0x06, 0x1732, QETH_CARD_TYPE_OSN, QETH_MAX_QUEUES, 0}, \
 221          {0x1731, 0x02, 0x1732, QETH_CARD_TYPE_OSM, QETH_MAX_QUEUES, 0}, \
 222          {0x1731, 0x02, 0x1732, QETH_CARD_TYPE_OSX, QETH_MAX_QUEUES, 0}, \
 223          {0, 0, 0, 0, 0, 0} }
 224 #define QETH_CU_TYPE_IND        0
 225 #define QETH_CU_MODEL_IND       1
 226 #define QETH_DEV_TYPE_IND       2
 227 #define QETH_DEV_MODEL_IND      3
 228 #define QETH_QUEUE_NO_IND       4
 229 #define QETH_MULTICAST_IND      5
 230
 231 #define QETH_REAL_CARD          1
 232 #define QETH_VLAN_CARD          2
 233 #define QETH_BUFSIZE            4096
 234
 235 /**
 236  * some more defs
 237  */
 238 #define QETH_TX_TIMEOUT         100 * HZ
 239 #define QETH_RCD_TIMEOUT        60 * HZ
 240 #define QETH_RECLAIM_WORK_TIME  HZ
 241 #define QETH_HEADER_SIZE        32
 242 #define QETH_MAX_PORTNO         15
 243
 244 /*IPv6 address autoconfiguration stuff*/
 245 #define UNIQUE_ID_IF_CREATE_ADDR_FAILED 0xfffe
 246 #define UNIQUE_ID_NOT_BY_CARD           0x10000
 247
 248 /*****************************************************************************/
 249 /* QDIO queue and buffer handling                                            */
 250 /*****************************************************************************/
 251 #define QETH_MAX_QUEUES 4
 252 #define QETH_IN_BUF_SIZE_DEFAULT 65536
 253 #define QETH_IN_BUF_COUNT_DEFAULT 64
 254 #define QETH_IN_BUF_COUNT_HSDEFAULT 128
 255 #define QETH_IN_BUF_COUNT_MIN 8
 256 #define QETH_IN_BUF_COUNT_MAX 128
 257 #define QETH_MAX_BUFFER_ELEMENTS(card) ((card)->qdio.in_buf_size >> 12)
 258 #define QETH_IN_BUF_REQUEUE_THRESHOLD(card) \
 259                  ((card)->qdio.in_buf_pool.buf_count / 2)
 260
 261 /* buffers we have to be behind before we get a PCI */
 262 #define QETH_PCI_THRESHOLD_A(card) ((card)->qdio.in_buf_pool.buf_count+1)
 263 /*enqueued free buffers left before we get a PCI*/
 264 #define QETH_PCI_THRESHOLD_B(card) 0
 265 /*not used unless the microcode gets patched*/
 266 #define QETH_PCI_TIMER_VALUE(card) 3
 267
 268 /* priority queing */
 269 #define QETH_PRIOQ_DEFAULT QETH_NO_PRIO_QUEUEING
 270 #define QETH_DEFAULT_QUEUE    2
 271 #define QETH_NO_PRIO_QUEUEING 0
 272 #define QETH_PRIO_Q_ING_PREC  1
 273 #define QETH_PRIO_Q_ING_TOS   2
 274 #define QETH_PRIO_Q_ING_SKB   3
 275 #define QETH_PRIO_Q_ING_VLAN  4
 276
 277 /* Packing */
 278 #define QETH_LOW_WATERMARK_PACK  2
 279 #define QETH_HIGH_WATERMARK_PACK 5
 280 #define QETH_WATERMARK_PACK_FUZZ 1
 281
 282 #define QETH_IP_HEADER_SIZE 40
 283
 284 /* large receive scatter gather copy break */
 285 #define QETH_RX_SG_CB (PAGE_SIZE >> 1)
 286 #define QETH_RX_PULL_LEN 256
 287
 288 struct qeth_hdr_layer3 {
 289         __u8  id;
 290         __u8  flags;
 291         __u16 inbound_checksum; /*TSO:__u16 seqno */
 292         __u32 token;            /*TSO: __u32 reserved */
 293         __u16 length;
 294         __u8  vlan_prio;
 295         __u8  ext_flags;
 296         __u16 vlan_id;
 297         __u16 frame_offset;
 298         __u8  dest_addr[16];
 299 } __attribute__ ((packed));
 300
 301 struct qeth_hdr_layer2 {
 302         __u8 id;
 303         __u8 flags[3];
 304         __u8 port_no;
 305         __u8 hdr_length;
 306         __u16 pkt_length;
 307         __u16 seq_no;
 308         __u16 vlan_id;
 309         __u32 reserved;
 310         __u8 reserved2[16];
 311 } __attribute__ ((packed));
 312
 313 struct qeth_hdr_osn {
 314         __u8 id;
 315         __u8 reserved;
 316         __u16 seq_no;
 317         __u16 reserved2;
 318         __u16 control_flags;
 319         __u16 pdu_length;
 320         __u8 reserved3[18];
 321         __u32 ccid;
 322 } __attribute__ ((packed));
 323
 324 struct qeth_hdr {
 325         union {
 326                 struct qeth_hdr_layer2 l2;
 327                 struct qeth_hdr_layer3 l3;
 328                 struct qeth_hdr_osn    osn;
 329         } hdr;
 330 } __attribute__ ((packed));
 331
 332 /*TCP Segmentation Offload header*/
 333 struct qeth_hdr_ext_tso {
 334         __u16 hdr_tot_len;
 335         __u8  imb_hdr_no;
 336         __u8  reserved;
 337         __u8  hdr_type;
 338         __u8  hdr_version;
 339         __u16 hdr_len;
 340         __u32 payload_len;
 341         __u16 mss;
 342         __u16 dg_hdr_len;
 343         __u8  padding[16];
 344 } __attribute__ ((packed));
 345
 346 struct qeth_hdr_tso {
 347         struct qeth_hdr hdr;    /*hdr->hdr.l3.xxx*/
 348         struct qeth_hdr_ext_tso ext;
 349 } __attribute__ ((packed));
 350
 351
 352 /* flags for qeth_hdr.flags */
 353 #define QETH_HDR_PASSTHRU 0x10
 354 #define QETH_HDR_IPV6     0x80
 355 #define QETH_HDR_CAST_MASK 0x07
 356 enum qeth_cast_flags {
 357         QETH_CAST_UNICAST   = 0x06,
 358         QETH_CAST_MULTICAST = 0x04,
 359         QETH_CAST_BROADCAST = 0x05,
 360         QETH_CAST_ANYCAST   = 0x07,
 361         QETH_CAST_NOCAST    = 0x00,
 362 };
 363
 364 enum qeth_layer2_frame_flags {
 365         QETH_LAYER2_FLAG_MULTICAST = 0x01,
 366         QETH_LAYER2_FLAG_BROADCAST = 0x02,
 367         QETH_LAYER2_FLAG_UNICAST   = 0x04,
 368         QETH_LAYER2_FLAG_VLAN      = 0x10,
 369 };
 370
 371 enum qeth_header_ids {
 372         QETH_HEADER_TYPE_LAYER3 = 0x01,
 373         QETH_HEADER_TYPE_LAYER2 = 0x02,
 374         QETH_HEADER_TYPE_TSO    = 0x03,
 375         QETH_HEADER_TYPE_OSN    = 0x04,
 376 };
 377 /* flags for qeth_hdr.ext_flags */
 378 #define QETH_HDR_EXT_VLAN_FRAME       0x01
 379 #define QETH_HDR_EXT_TOKEN_ID         0x02
 380 #define QETH_HDR_EXT_INCLUDE_VLAN_TAG 0x04
 381 #define QETH_HDR_EXT_SRC_MAC_ADDR     0x08
 382 #define QETH_HDR_EXT_CSUM_HDR_REQ     0x10
 383 #define QETH_HDR_EXT_CSUM_TRANSP_REQ  0x20
 384 #define QETH_HDR_EXT_UDP              0x40 /*bit off for TCP*/
 385
 386 enum qeth_qdio_buffer_states {
 387         /*
 388          * inbound: read out by driver; owned by hardware in order to be filled
 389          * outbound: owned by driver in order to be filled
 390          */
 391         QETH_QDIO_BUF_EMPTY,
 392         /*
 393          * inbound: filled by hardware; owned by driver in order to be read out
 394          * outbound: filled by driver; owned by hardware in order to be sent
 395          */
 396         QETH_QDIO_BUF_PRIMED,
 397         /*
 398          * inbound: not applicable
 399          * outbound: identified to be pending in TPQ
 400          */
 401         QETH_QDIO_BUF_PENDING,
 402         /*
 403          * inbound: not applicable
 404          * outbound: found in completion queue
 405          */
 406         QETH_QDIO_BUF_IN_CQ,
 407         /*
 408          * inbound: not applicable
 409          * outbound: handled via transfer pending / completion queue
 410          */
 411         QETH_QDIO_BUF_HANDLED_DELAYED,
 412 };
 413
 414 enum qeth_qdio_info_states {
 415         QETH_QDIO_UNINITIALIZED,
 416         QETH_QDIO_ALLOCATED,
 417         QETH_QDIO_ESTABLISHED,
 418         QETH_QDIO_CLEANING
 419 };
 420
 421 struct qeth_buffer_pool_entry {
 422         struct list_head list;
 423         struct list_head init_list;
 424         void *elements[QDIO_MAX_ELEMENTS_PER_BUFFER];
 425 };
 426
 427 struct qeth_qdio_buffer_pool {
 428         struct list_head entry_list;
 429         int buf_count;
 430 };
 431
 432 struct qeth_qdio_buffer {
 433         struct qdio_buffer *buffer;
 434         /* the buffer pool entry currently associated to this buffer */
 435         struct qeth_buffer_pool_entry *pool_entry;
 436         struct sk_buff *rx_skb;
 437 };
 438
 439 struct qeth_qdio_q {
 440         struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
 441         struct qeth_qdio_buffer bufs[QDIO_MAX_BUFFERS_PER_Q];
 442         int next_buf_to_init;
 443 };
 444
 445 struct qeth_qdio_out_buffer {
 446         struct qdio_buffer *buffer;
 447         atomic_t state;
 448         int next_element_to_fill;
 449         struct sk_buff_head skb_list;
 450         int is_header[16];
 451
 452         struct qaob *aob;
 453         struct qeth_qdio_out_q *q;
 454         struct qeth_qdio_out_buffer *next_pending;
 455 };
 456
 457 struct qeth_card;
 458
 459 enum qeth_out_q_states {
 460        QETH_OUT_Q_UNLOCKED,
 461        QETH_OUT_Q_LOCKED,
 462        QETH_OUT_Q_LOCKED_FLUSH,
 463 };
 464
 465 struct qeth_qdio_out_q {
 466         struct qdio_buffer *qdio_bufs[QDIO_MAX_BUFFERS_PER_Q];
 467         struct qeth_qdio_out_buffer *bufs[QDIO_MAX_BUFFERS_PER_Q];
 468         struct qdio_outbuf_state *bufstates; /* convenience pointer */
 469         int queue_no;
 470         struct qeth_card *card;
 471         atomic_t state;
 472         int do_pack;
 473         /*
 474          * index of buffer to be filled by driver; state EMPTY or PACKING
 475          */
 476         int next_buf_to_fill;
 477         /*
 478          * number of buffers that are currently filled (PRIMED)
 479          * -> these buffers are hardware-owned
 480          */
 481         atomic_t used_buffers;
 482         /* indicates whether PCI flag must be set (or if one is outstanding) */
 483         atomic_t set_pci_flags_count;
 484 };
 485
 486 struct qeth_qdio_info {
 487         atomic_t state;
 488         /* input */
 489         int no_in_queues;
 490         struct qeth_qdio_q *in_q;
 491         struct qeth_qdio_q *c_q;
 492         struct qeth_qdio_buffer_pool in_buf_pool;
 493         struct qeth_qdio_buffer_pool init_pool;
 494         int in_buf_size;
 495
 496         /* output */
 497         int no_out_queues;
 498         struct qeth_qdio_out_q **out_qs;
 499         struct qdio_outbuf_state *out_bufstates;
 500
 501         /* priority queueing */
 502         int do_prio_queueing;
 503         int default_out_queue;
 504 };
 505
 506 enum qeth_send_errors {
 507         QETH_SEND_ERROR_NONE,
 508         QETH_SEND_ERROR_LINK_FAILURE,
 509         QETH_SEND_ERROR_RETRY,
 510         QETH_SEND_ERROR_KICK_IT,
 511 };
 512
 513 #define QETH_ETH_MAC_V4      0x0100 /* like v4 */
 514 #define QETH_ETH_MAC_V6      0x3333 /* like v6 */
 515 /* tr mc mac is longer, but that will be enough to detect mc frames */
 516 #define QETH_TR_MAC_NC       0xc000 /* non-canonical */
 517 #define QETH_TR_MAC_C        0x0300 /* canonical */
 518
 519 #define DEFAULT_ADD_HHLEN 0
 520 #define MAX_ADD_HHLEN 1024
 521
 522 /**
 523  * buffer stuff for read channel
 524  */
 525 #define QETH_CMD_BUFFER_NO      8
 526
 527 /**
 528  *  channel state machine
 529  */
 530 enum qeth_channel_states {
 531         CH_STATE_UP,
 532         CH_STATE_DOWN,
 533         CH_STATE_ACTIVATING,
 534         CH_STATE_HALTED,
 535         CH_STATE_STOPPED,
 536         CH_STATE_RCD,
 537         CH_STATE_RCD_DONE,
 538 };
 539 /**
 540  * card state machine
 541  */
 542 enum qeth_card_states {
 543         CARD_STATE_DOWN,
 544         CARD_STATE_HARDSETUP,
 545         CARD_STATE_SOFTSETUP,
 546         CARD_STATE_UP,
 547         CARD_STATE_RECOVER,
 548 };
 549
 550 /**
 551  * Protocol versions
 552  */
 553 enum qeth_prot_versions {
 554         QETH_PROT_IPV4 = 0x0004,
 555         QETH_PROT_IPV6 = 0x0006,
 556 };
 557
 558 enum qeth_ip_types {
 559         QETH_IP_TYPE_NORMAL,
 560         QETH_IP_TYPE_VIPA,
 561         QETH_IP_TYPE_RXIP,
 562         QETH_IP_TYPE_DEL_ALL_MC,
 563 };
 564
 565 enum qeth_cmd_buffer_state {
 566         BUF_STATE_FREE,
 567         BUF_STATE_LOCKED,
 568         BUF_STATE_PROCESSED,
 569 };
 570
 571 enum qeth_cq {
 572         QETH_CQ_DISABLED = 0,
 573         QETH_CQ_ENABLED = 1,
 574         QETH_CQ_NOTAVAILABLE = 2,
 575 };
 576
 577 struct qeth_ipato {
 578         int enabled;
 579         int invert4;
 580         int invert6;
 581         struct list_head entries;
 582 };
 583
 584 struct qeth_channel;
 585
 586 struct qeth_cmd_buffer {
 587         enum qeth_cmd_buffer_state state;
 588         struct qeth_channel *channel;
 589         unsigned char *data;
 590         int rc;
 591         void (*callback) (struct qeth_channel *, struct qeth_cmd_buffer *);
 592 };
 593
 594 /**
 595  * definition of a qeth channel, used for read and write
 596  */
 597 struct qeth_channel {
 598         enum qeth_channel_states state;
 599         struct ccw1 ccw;
 600         spinlock_t iob_lock;
 601         wait_queue_head_t wait_q;
 602         struct ccw_device *ccwdev;
 603 /*command buffer for control data*/
 604         struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO];
 605         atomic_t irq_pending;
 606         int io_buf_no;
 607         int buf_no;
 608 };
 609
 610 /**
 611  *  OSA card related definitions
 612  */
 613 struct qeth_token {
 614         __u32 issuer_rm_w;
 615         __u32 issuer_rm_r;
 616         __u32 cm_filter_w;
 617         __u32 cm_filter_r;
 618         __u32 cm_connection_w;
 619         __u32 cm_connection_r;
 620         __u32 ulp_filter_w;
 621         __u32 ulp_filter_r;
 622         __u32 ulp_connection_w;
 623         __u32 ulp_connection_r;
 624 };
 625
 626 struct qeth_seqno {
 627         __u32 trans_hdr;
 628         __u32 pdu_hdr;
 629         __u32 pdu_hdr_ack;
 630         __u16 ipa;
 631         __u32 pkt_seqno;
 632 };
 633
 634 struct qeth_reply {
 635         struct list_head list;
 636         wait_queue_head_t wait_q;
 637         int (*callback)(struct qeth_card *, struct qeth_reply *,
 638                 unsigned long);
 639         u32 seqno;
 640         unsigned long offset;
 641         atomic_t received;
 642         int rc;
 643         void *param;
 644         struct qeth_card *card;
 645         atomic_t refcnt;
 646 };
 647
 648
 649 struct qeth_card_blkt {
 650         int time_total;
 651         int inter_packet;
 652         int inter_packet_jumbo;
 653 };
 654
 655 #define QETH_BROADCAST_WITH_ECHO    0x01
 656 #define QETH_BROADCAST_WITHOUT_ECHO 0x02
 657 #define QETH_LAYER2_MAC_READ        0x01
 658 #define QETH_LAYER2_MAC_REGISTERED  0x02
 659 struct qeth_card_info {
 660         unsigned short unit_addr2;
 661         unsigned short cula;
 662         unsigned short chpid;
 663         __u16 func_level;
 664         char mcl_level[QETH_MCL_LENGTH + 1];
 665         int guestlan;
 666         int mac_bits;
 667         int portno;
 668         enum qeth_card_types type;
 669         enum qeth_link_types link_type;
 670         int is_multicast_different;
 671         int initial_mtu;
 672         int max_mtu;
 673         int broadcast_capable;
 674         int unique_id;
 675         struct qeth_card_blkt blkt;
 676         __u32 csum_mask;
 677         __u32 tx_csum_mask;
 678         enum qeth_ipa_promisc_modes promisc_mode;
 679         __u32 diagass_support;
 680         __u32 hwtrap;
 681 };
 682
 683 struct qeth_card_options {
 684         struct qeth_routing_info route4;
 685         struct qeth_ipa_info ipa4;
 686         struct qeth_ipa_info adp; /*Adapter parameters*/
 687         struct qeth_routing_info route6;
 688         struct qeth_ipa_info ipa6;
 689         struct qeth_sbp_info sbp; /* SETBRIDGEPORT options */
 690         int fake_broadcast;
 691         int add_hhlen;
 692         int layer2;
 693         int performance_stats;
 694         int rx_sg_cb;
 695         enum qeth_ipa_isolation_modes isolation;
 696         enum qeth_ipa_isolation_modes prev_isolation;
 697         int sniffer;
 698         enum qeth_cq cq;
 699         char hsuid[9];
 700 };
 701
 702 /*
 703  * thread bits for qeth_card thread masks
 704  */
 705 enum qeth_threads {
 706         QETH_RECOVER_THREAD = 1,
 707 };
 708
 709 struct qeth_osn_info {
 710         int (*assist_cb)(struct net_device *dev, void *data);
 711         int (*data_cb)(struct sk_buff *skb);
 712 };
 713
 714 enum qeth_discipline_id {
 715         QETH_DISCIPLINE_LAYER3 = 0,
 716         QETH_DISCIPLINE_LAYER2 = 1,
 717 };
 718
 719 struct qeth_discipline {
 720         void (*start_poll)(struct ccw_device *, int, unsigned long);
 721         qdio_handler_t *input_handler;
 722         qdio_handler_t *output_handler;
 723         int (*recover)(void *ptr);
 724         int (*setup) (struct ccwgroup_device *);
 725         void (*remove) (struct ccwgroup_device *);
 726         int (*set_online) (struct ccwgroup_device *);
 727         int (*set_offline) (struct ccwgroup_device *);
 728         void (*shutdown)(struct ccwgroup_device *);
 729         int (*prepare) (struct ccwgroup_device *);
 730         void (*complete) (struct ccwgroup_device *);
 731         int (*freeze)(struct ccwgroup_device *);
 732         int (*thaw) (struct ccwgroup_device *);
 733         int (*restore)(struct ccwgroup_device *);
 734         int (*control_event_handler)(struct qeth_card *card,
 735                                         struct qeth_ipa_cmd *cmd);
 736 };
 737
 738 struct qeth_vlan_vid {
 739         struct list_head list;
 740         unsigned short vid;
 741 };
 742
 743 enum qeth_mac_disposition {
 744         QETH_DISP_MAC_DELETE = 0,
 745         QETH_DISP_MAC_DO_NOTHING = 1,
 746         QETH_DISP_MAC_ADD = 2,
 747 };
 748
 749 struct qeth_mac {
 750         u8 mac_addr[OSA_ADDR_LEN];
 751         u8 is_uc:1;
 752         u8 disp_flag:2;
 753         struct hlist_node hnode;
 754 };
 755
 756 struct qeth_rx {
 757         int b_count;
 758         int b_index;
 759         struct qdio_buffer_element *b_element;
 760         int e_offset;
 761         int qdio_err;
 762 };
 763
 764 struct carrier_info {
 765         __u8  card_type;
 766         __u16 port_mode;
 767         __u32 port_speed;
 768 };
 769
 770 struct qeth_switch_info {
 771         __u32 capabilities;
 772         __u32 settings;
 773 };
 774
 775 #define QETH_NAPI_WEIGHT NAPI_POLL_WEIGHT
 776
 777 struct qeth_card {
 778         struct list_head list;
 779         enum qeth_card_states state;
 780         int lan_online;
 781         spinlock_t lock;
 782         struct ccwgroup_device *gdev;
 783         struct qeth_channel read;
 784         struct qeth_channel write;
 785         struct qeth_channel data;
 786
 787         struct net_device *dev;
 788         struct net_device_stats stats;
 789
 790         struct qeth_card_info info;
 791         struct qeth_token token;
 792         struct qeth_seqno seqno;
 793         struct qeth_card_options options;
 794
 795         wait_queue_head_t wait_q;
 796         spinlock_t vlanlock;
 797         spinlock_t mclock;
 798         unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
 799         struct list_head vid_list;
 800         DECLARE_HASHTABLE(mac_htable, 4);
 801         struct work_struct kernel_thread_starter;
 802         spinlock_t thread_mask_lock;
 803         unsigned long thread_start_mask;
 804         unsigned long thread_allowed_mask;
 805         unsigned long thread_running_mask;
 806         struct task_struct *recovery_task;
 807         spinlock_t ip_lock;
 808         struct list_head ip_list;
 809         struct list_head *ip_tbd_list;
 810         struct qeth_ipato ipato;
 811         struct list_head cmd_waiter_list;
 812         /* QDIO buffer handling */
 813         struct qeth_qdio_info qdio;
 814         struct qeth_perf_stats perf_stats;
 815         int read_or_write_problem;
 816         struct qeth_osn_info osn_info;
 817         struct qeth_discipline *discipline;
 818         atomic_t force_alloc_skb;
 819         struct service_level qeth_service_level;
 820         struct qdio_ssqd_desc ssqd;
 821         debug_info_t *debug;
 822         struct mutex conf_mutex;
 823         struct mutex discipline_mutex;
 824         struct napi_struct napi;
 825         struct qeth_rx rx;
 826         struct delayed_work buffer_reclaim_work;
 827         int reclaim_index;
 828         struct work_struct close_dev_work;
 829 };
 830
 831 struct qeth_card_list_struct {
 832         struct list_head list;
 833         rwlock_t rwlock;
 834 };
 835
 836 struct qeth_trap_id {
 837         __u16 lparnr;
 838         char vmname[8];
 839         __u8 chpid;
 840         __u8 ssid;
 841         __u16 devno;
 842 } __packed;
 843
 844 /*some helper functions*/
 845 #define QETH_CARD_IFNAME(card) (((card)->dev)? (card)->dev->name : "")
 846
 847 static inline int qeth_get_micros(void)
 848 {
 849         return (int) (get_tod_clock() >> 12);
 850 }
 851
 852 static inline int qeth_get_ip_version(struct sk_buff *skb)
 853 {
 854         __be16 *p = &((struct ethhdr *)skb->data)->h_proto;
 855
 856         if (*p == ETH_P_8021Q)
 857                 p += 2;
 858         switch (*p) {
 859         case ETH_P_IPV6:
 860                 return 6;
 861         case ETH_P_IP:
 862                 return 4;
 863         default:
 864                 return 0;
 865         }
 866 }
 867
 868 static inline void qeth_put_buffer_pool_entry(struct qeth_card *card,
 869                 struct qeth_buffer_pool_entry *entry)
 870 {
 871         list_add_tail(&entry->list, &card->qdio.in_buf_pool.entry_list);
 872 }
 873
 874 static inline int qeth_is_diagass_supported(struct qeth_card *card,
 875                 enum qeth_diags_cmds cmd)
 876 {
 877         return card->info.diagass_support & (__u32)cmd;
 878 }
 879
 880 extern struct qeth_discipline qeth_l2_discipline;
 881 extern struct qeth_discipline qeth_l3_discipline;
 882 extern const struct attribute_group *qeth_generic_attr_groups[];
 883 extern const struct attribute_group *qeth_osn_attr_groups[];
 884 extern struct workqueue_struct *qeth_wq;
 885
 886 int qeth_card_hw_is_reachable(struct qeth_card *);
 887 const char *qeth_get_cardname_short(struct qeth_card *);
 888 int qeth_realloc_buffer_pool(struct qeth_card *, int);
 889 int qeth_core_load_discipline(struct qeth_card *, enum qeth_discipline_id);
 890 void qeth_core_free_discipline(struct qeth_card *);
 891
 892 /* exports for qeth discipline device drivers */
 893 extern struct qeth_card_list_struct qeth_core_card_list;
 894 extern struct kmem_cache *qeth_core_header_cache;
 895 extern struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS];
 896
 897 void qeth_set_recovery_task(struct qeth_card *);
 898 void qeth_clear_recovery_task(struct qeth_card *);
 899 void qeth_set_allowed_threads(struct qeth_card *, unsigned long , int);
 900 int qeth_threads_running(struct qeth_card *, unsigned long);
 901 int qeth_wait_for_threads(struct qeth_card *, unsigned long);
 902 int qeth_do_run_thread(struct qeth_card *, unsigned long);
 903 void qeth_clear_thread_start_bit(struct qeth_card *, unsigned long);
 904 void qeth_clear_thread_running_bit(struct qeth_card *, unsigned long);
 905 int qeth_core_hardsetup_card(struct qeth_card *);
 906 void qeth_print_status_message(struct qeth_card *);
 907 int qeth_init_qdio_queues(struct qeth_card *);
 908 int qeth_send_startlan(struct qeth_card *);
 909 int qeth_send_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *,
 910                   int (*reply_cb)
 911                   (struct qeth_card *, struct qeth_reply *, unsigned long),
 912                   void *);
 913 struct qeth_cmd_buffer *qeth_get_ipacmd_buffer(struct qeth_card *,
 914                         enum qeth_ipa_cmds, enum qeth_prot_versions);
 915 int qeth_query_setadapterparms(struct qeth_card *);
 916 int qeth_check_qdio_errors(struct qeth_card *, struct qdio_buffer *,
 917                 unsigned int, const char *);
 918 void qeth_queue_input_buffer(struct qeth_card *, int);
 919 struct sk_buff *qeth_core_get_next_skb(struct qeth_card *,
 920                 struct qeth_qdio_buffer *, struct qdio_buffer_element **, int *,
 921                 struct qeth_hdr **);
 922 void qeth_schedule_recovery(struct qeth_card *);
 923 void qeth_qdio_start_poll(struct ccw_device *, int, unsigned long);
 924 void qeth_qdio_input_handler(struct ccw_device *,
 925                 unsigned int, unsigned int, int,
 926                 int, unsigned long);
 927 void qeth_qdio_output_handler(struct ccw_device *, unsigned int,
 928                         int, int, int, unsigned long);
 929 void qeth_clear_ipacmd_list(struct qeth_card *);
 930 int qeth_qdio_clear_card(struct qeth_card *, int);
 931 void qeth_clear_working_pool_list(struct qeth_card *);
 932 void qeth_clear_cmd_buffers(struct qeth_channel *);
 933 void qeth_clear_qdio_buffers(struct qeth_card *);
 934 void qeth_setadp_promisc_mode(struct qeth_card *);
 935 struct net_device_stats *qeth_get_stats(struct net_device *);
 936 int qeth_change_mtu(struct net_device *, int);
 937 int qeth_setadpparms_change_macaddr(struct qeth_card *);
 938 void qeth_tx_timeout(struct net_device *);
 939 void qeth_prepare_control_data(struct qeth_card *, int,
 940                                 struct qeth_cmd_buffer *);
 941 void qeth_release_buffer(struct qeth_channel *, struct qeth_cmd_buffer *);
 942 void qeth_prepare_ipa_cmd(struct qeth_card *, struct qeth_cmd_buffer *, char);
 943 struct qeth_cmd_buffer *qeth_wait_for_buffer(struct qeth_channel *);
 944 int qeth_mdio_read(struct net_device *, int, int);
 945 int qeth_snmp_command(struct qeth_card *, char __user *);
 946 int qeth_query_oat_command(struct qeth_card *, char __user *);
 947 int qeth_query_switch_attributes(struct qeth_card *card,
 948                                   struct qeth_switch_info *sw_info);
 949 int qeth_send_control_data(struct qeth_card *, int, struct qeth_cmd_buffer *,
 950         int (*reply_cb)(struct qeth_card *, struct qeth_reply*, unsigned long),
 951         void *reply_param);
 952 int qeth_bridgeport_query_ports(struct qeth_card *card,
 953         enum qeth_sbp_roles *role, enum qeth_sbp_states *state);
 954 int qeth_bridgeport_setrole(struct qeth_card *card, enum qeth_sbp_roles role);
 955 int qeth_bridgeport_an_set(struct qeth_card *card, int enable);
 956 int qeth_get_priority_queue(struct qeth_card *, struct sk_buff *, int, int);
 957 int qeth_get_elements_no(struct qeth_card *, struct sk_buff *, int);
 958 int qeth_get_elements_for_frags(struct sk_buff *);
 959 int qeth_do_send_packet_fast(struct qeth_card *, struct qeth_qdio_out_q *,
 960                         struct sk_buff *, struct qeth_hdr *, int, int, int);
 961 int qeth_do_send_packet(struct qeth_card *, struct qeth_qdio_out_q *,
 962                     struct sk_buff *, struct qeth_hdr *, int);
 963 int qeth_core_get_sset_count(struct net_device *, int);
 964 void qeth_core_get_ethtool_stats(struct net_device *,
 965                                 struct ethtool_stats *, u64 *);
 966 void qeth_core_get_strings(struct net_device *, u32, u8 *);
 967 void qeth_core_get_drvinfo(struct net_device *, struct ethtool_drvinfo *);
 968 void qeth_dbf_longtext(debug_info_t *id, int level, char *text, ...);
 969 int qeth_core_ethtool_get_settings(struct net_device *, struct ethtool_cmd *);
 970 int qeth_set_access_ctrl_online(struct qeth_card *card, int fallback);
 971 int qeth_hdr_chk_and_bounce(struct sk_buff *, struct qeth_hdr **, int);
 972 int qeth_configure_cq(struct qeth_card *, enum qeth_cq);
 973 int qeth_hw_trap(struct qeth_card *, enum qeth_diags_trap_action);
 974 int qeth_query_ipassists(struct qeth_card *, enum qeth_prot_versions prot);
 975 void qeth_trace_features(struct qeth_card *);
 976 void qeth_close_dev(struct qeth_card *);
 977 int qeth_send_simple_setassparms(struct qeth_card *, enum qeth_ipa_funcs,
 978                                  __u16, long);
 979 int qeth_send_setassparms(struct qeth_card *, struct qeth_cmd_buffer *, __u16,
 980                           long,
 981                           int (*reply_cb)(struct qeth_card *,
 982                                           struct qeth_reply *, unsigned long),
 983                           void *);
 984 int qeth_start_ipa_tx_checksum(struct qeth_card *);
 985 int qeth_set_rx_csum(struct qeth_card *, int);
 986
 987 /* exports for OSN */
 988 int qeth_osn_assist(struct net_device *, void *, int);
 989 int qeth_osn_register(unsigned char *read_dev_no, struct net_device **,
 990                 int (*assist_cb)(struct net_device *, void *),
 991                 int (*data_cb)(struct sk_buff *));
 992 void qeth_osn_deregister(struct net_device *);
 993
 994 #endif /* __QETH_CORE_H__ */